There are so many details in a movie that it's amazing how much work you'll do to change what adds up to not that much material.

Actors are very demanding because they have nowhere to hide. If I write a scene, it doesn't turn out very well, I don't ever have to show it to anyone; when you turn the camera on, or when you walk on stage, they have to feel like what's happening is real.

I do a lot of improvising when I'm writing, and I work very hard on the scripts... they are written very much in an actor-friendly way.

Kenneth Lonergan Quotes